Finnish quantum hardware startup Coherence Quantum has raised €2.78 million in Seed funding to advance its integrated cryogenic signaling and control platform for solid-state quantum processors. The round was led by Helsinki-based early-stage investor Lifeline Ventures, with participation from technology entrepreneur Mårten Mickos. The company, which originated from Aalto University’s Quantum Computing and Devices group, aims to solve the infrastructure bottlenecks that emerge as quantum computers scale.
Addressing Quantum Scaling Constraints
Adding more qubits increases the number of control and readout signals that must reach the quantum processing unit, or QPU. Conventional designs require additional wiring and signal-conditioning hardware inside environments with very limited space and cooling power. At the same time, qubit systems must remain protected from thermal noise and other disturbances that can degrade performance.
A Cryogenic Control Roadmap
Coherence Quantum is developing cryogenic signal conditioning as its first product category to help protect the qubit environment. The company then plans to introduce higher-density signal interfaces and to bring more control functionality inside the cryostat, closer to the quantum processing unit. This phased roadmap is intended to help quantum computer builders support larger systems without allowing wiring, cooling requirements, and complexity to grow at the same pace.
Team and Validation
The technology builds on research from Aalto University’s Quantum Computing and Devices group, where the team has spent more than two years developing and testing cryogenic signaling systems. Multiple generations of prototypes have been validated in dilution refrigerators using qubit systems. The founding team includes CEO Aashish Sah, CTO Suman Kundu, who helped establish Aalto University’s 20-qubit Q20 quantum computer, and CPO Erkki Soininen, formerly of cryogenics company Bluefors, with support from founding advisor Mikko Möttönen.
Executive Commentary
CEO Aashish Sah said that quantum computers will not scale by adding qubits alone, because the surrounding infrastructure must scale as well. He explained that the company is starting with signal conditioning and building toward higher-density interfaces and ultimately more integrated cryogenic control. The goal is to give quantum computer builders an architecture that supports larger systems without proportional growth in wiring, cooling requirements, and complexity.
Investor Confidence
Petteri Koponen, Founding Partner of Lifeline Ventures, said the quantum industry has proved that increasingly capable processors can be built, and the next challenge is building the infrastructure that allows them to scale. He described Coherence Quantum as addressing a fundamental part of that problem with an exceptional technical team and a clear view of the industry’s direction. Mårten Mickos added that the company is tackling heat, noise, and complexity while helping make quantum computing practical and scalable.
Deployment of Funding
The €2.78 million investment will be used to establish Coherence Quantum’s laboratory in Espoo, Finland, and to build its first product prototypes and manufacturing process. The funding will also support continued research and development and team growth. The company is building dedicated R&D, testing, and manufacturing capabilities close to Aalto University and Finland’s broader quantum technology ecosystem.
Standardization Ambitions
Coherence Quantum’s long-term ambition is to help establish a standardized blueprint for the cryogenic signaling and control stack. The company intends to integrate its own technologies with complementary solutions from across the quantum ecosystem. This approach aims to support superconducting and spin-qubit systems without proportional increases in wiring, cooling requirements, or system complexity.
Coherence Quantum’s Seed funding marks a concrete step toward addressing one of the quantum industry’s most pressing infrastructure challenges. By focusing on cryogenic signal conditioning and moving toward integrated control, the company is positioning itself at the center of efforts to build larger and more practical quantum computers. With its roots in Aalto University research and backing from Lifeline Ventures and Mårten Mickos, the Espoo-based startup is building the foundation for the next phase of quantum hardware development.